On 8/18/2011 1:43 PM, David Irisarri wrote:
> Hi Moose,
>
> Thank you very much for your detailed answer. I´ll to answer to all your
> questions.
>
> 1. I don´t think he is looking for extracting the maximum detail but on the
> other hand if you take a picture at 1600 ISO with an E-5, then you crop the
> top and bottom black bars and you want to enlarge the picture, using PS
> interpolation to print them in large prints; noise is going to be a problem.
> I would prefer enlarging a full frame image at 1600, even if the picture
> was blurred or blown out because this is why I wanted to do. I have seen
> some of his work and he likes taking stills of his movies for future use. He
> likes defocusing, blowing out highlights but prints are free of noise.
Just take the noise out with an NR app. As there's little actual detail left
after the other things are done, smoothing
the noise out is really simple. I wouldn't be surprised if it mostly
disappeared in the other processing.
> 2. He films his movies in many formats and they mixed them, adding grain or
> whatever to match all the scenes. Anyway if you grab a 1920x1200 Full HD
> image and you enlarge it to 80 inches x 45 inches or even more, even if the
> interpolation algorithms are good, the resulted image will be blurred.
OK, so you project 1920x1200 onto a large screen, losing detail in the process,
shoot it on even FF 5600x3700, 21MP, and
it will inevitably be more blurred than the original. If you really care about
retaining sharpness, use a deconvolution
app on the original image. The result will be much less blurry than the shot of
a projected image. And no added noise.
> 3. He told me we will rent the equipment. Honestly I´d use an E-5 or an
> E-P3, sitting in front of the projected film and I´d create images even if
> noise is a problem.
If you are renting - and if you actually care about sharpness, which is
contradicted by much of what you say - why not
go full frame? If all you need is invisible noise, FF wins again, as it will
require less noise reduction.
> I can process them under PS and burn highlights and shadows to hide noise and
> increasing contrast.
Again, just blast the noise with software, and do the other stuff to get the
other effects you need.. Here's a shot with
a smallish sensor DSLR, Canon 60D, ISO 6400, at dusk.
<http://www.moosemystic.net/Gallery/tech/Process/NR/ISO6400nr.htm>
Noise Moose
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|